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Oval|Lab Grown|IGI

1.70ct G IF Oval Lab Grown Diamond

EX • G/IF • IGI LG639467688

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG639467688

Diamond specifications and retailer prices

From $1,142 USD
As of October 23, 2026
Save $2,178 USD (66%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,320 USD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.7ct lab-grown oval diamond

This 1.7ct lab-grown oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG639467688 or 639467688. Listed at 24 retailers as of October 23, 2026, with prices from $1,142 to $3,320, a $2,178 spread on the same certified stone. Brilliant Earth lists it at $3,320. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
G
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639467688
Dimensions9.85 × 6.89 × 4.16 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.85 mm6.89 mm1.70 ctG / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639467688
Side View
Table 60.0%Crown 33.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 23
Current: $3,320 USD|Low: $319 USD|High: $3,320 USD|Avg: $1,053 USD|+0.3%
Brilliant Earth
Retailer 2
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October 25, 2026
Retailer 10$319 USD
Retailer 8$357 USD
Retailer 20$370 USD
Retailer 5$395 USD
Retailer 14$395 USD
Retailer 2$418 USD
Retailer 12$435 USD
Retailer 18$572 USD
Retailer 19$600 USD
Retailer 4$661 USD
Retailer 22$673 USD
Retailer 13$693 USD
Retailer 24$741 USD
Retailer 21$930 USD
Retailer 3$1,142 USD
Retailer 7$1,160 USD
Retailer 11$1,268 USD
Retailer 9$1,271 USD
Retailer 17$1,317 USD
Retailer 16$1,520 USD
Retailer 15$1,539 USD
Retailer 6$1,573 USD
Retailer 25$1,594 USD
Retailer 23$2,320 USD
Brilliant Earth$3,320 USD

33 data points across 25 retailers

24 retailers$1,142 USD to $3,320 USD

Retailer 1
-
$319 USD
Price last confirmed 9 days ago
Retailer 2
-
$370 USD
View
Price last confirmed 9 days ago
Retailer 3
-
$395 USD
View
Price last confirmed 14 days ago
Retailer 4
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$395 USD
View
Price last confirmed 8 days ago
Retailer 5
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$418 USD
£329 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
$435 USD
HK$3,400 HKD
View
Price last confirmed 7 days ago
Retailer 7
-
$572 USD
View
Price last confirmed 12 days ago
Retailer 8
-
$600 USD
View
Price last confirmed 7 days ago
Retailer 9
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$661 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$673 USD
ZAR 10,877 ZAR
View
Price last confirmed 11 days ago
Retailer 11
-
$693 USD
£546 GBP
View
Price last confirmed 8 days ago
Retailer 12
-
$930 USD
A$1,430 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$1,142 USD
View
Retailer 14
-
$1,160 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$1,268 USD
SGD 1,713 SGD
View
Price last confirmed 7 days ago
Retailer 16
-
$1,271 USD
View
Price last confirmed 8 days ago
Retailer 17
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$1,317 USD
View
Price last confirmed 9 days ago
Retailer 18
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$1,326 USD
View
Price last confirmed 7 days ago
Retailer 19
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$1,520 USD
View
Price last confirmed 7 days ago
Retailer 20
-
$1,539 USD
£1,212 GBP
View
Price last confirmed 8 days ago
Retailer 21
-
$1,573 USD
View
Price last confirmed 7 days ago
Retailer 22
-
$1,594 USD
£1,255 GBP
View
Price last confirmed 11 days ago
Retailer 23
-
$2,320 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
18716407A · Oct 26
$3,320 USD
View
23 more retailers have this diamond
Prices start from $1,142 USDSave up to $2,178 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.70ct Oval
$1,142 USD