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Round|Lab Grown|IGI

1.69ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG773665605

Shape and cutting style on the report: Round brilliant

Certificate IGI LG773665605

Diamond specifications and retailer prices

From $227 USD
As of October 26, 2026
Save $1,233 USD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,460 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.69ct lab-grown round diamond

This 1.69ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG773665605 or 773665605. Listed at 16 retailers as of October 26, 2026, with prices from $227 to $1,460, a $1,233 spread on the same certified stone. Brilliant Earth lists it at $1,460. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.69
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773665605
Dimensions7.67 × 7.59 × 4.65 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.67 mm7.59 mm1.69 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG773665605
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: $1,460 USD|Low: $223 USD|High: $1,770 USD|Avg: $614 USD|-17.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 3$227 USD
Retailer 16$253 USD
Retailer 15$263 USD
Retailer 17$282 USD
Retailer 11$307 USD
Retailer 2$448 USD
Retailer 9$451 USD
Retailer 4$479 USD
Retailer 13$521 USD
Retailer 8$541 USD
Retailer 14$552 USD
Retailer 10$729 USD
Retailer 5$830 USD
Retailer 12$901 USD
Retailer 6$905 USD
Retailer 7$1,134 USD
Brilliant Earth$1,460 USD

44 data points across 17 retailers

16 retailers$227 USD to $1,460 USD

A
Cheapest Retailer
-
$227 USD
Retailer 2
-
$263 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$282 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$307 USD
HK$2,400 HKD
View
A
Retailer 5
-
$448 USD
€427 EUR
View
Retailer 6
-
$451 USD
£355 GBP
View
Price last confirmed 15 days ago
B+
Retailer 7
-
$479 USD
View
A
Retailer 8
-
$521 USD
£410 GBP
View
A
Retailer 9
-
$541 USD
View
A
Retailer 10
-
$552 USD
View
B+
Retailer 11
-
$729 USD
View
Retailer 12
-
$830 USD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$901 USD
SGD 1,218 SGD
View
Retailer 14
-
$905 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$1,134 USD
£893 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
18326140A · Oct 31
$1,460 USD
View
15 more retailers have this diamond
Prices start from $227 USDSave up to $1,233 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.

A
1.69ct Round
$227 USD