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Oval|Lab Grown|IGI

1.64ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG788640224

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG788640224

Diamond specifications and retailer prices

From $634 SGD
$495 USD
As of October 28, 2026
Save $3,711 SGD (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,345 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.64ct lab-grown oval diamond

This 1.64ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788640224 or 788640224. Listed at 23 retailers as of October 28, 2026, with prices from $634 to $4,345, a $3,711 spread on the same certified stone. Brilliant Earth lists it at $4,345. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788640224
Dimensions9.61 × 6.54 × 4.01 mm
L/W Ratio1.47
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
9.61 mm6.54 mm1.64 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788640224
Side View
Table 59.0%Crown 37°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $4,345 SGD|Low: $299 SGD|High: $4,473 SGD|Avg: $1,246 SGD|-2.9%
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
October 29, 2026
Retailer 12$634 SGD
Retailer 10$654 SGD
Retailer 15$660 SGD
Retailer 7$756 SGD
Retailer 13$773 SGD
Retailer 2$793 SGD
Retailer 6$887 SGD
Retailer 4$1,002 SGD
Retailer 11$1,046 SGD
Retailer 8$1,429 SGD
Retailer 16$1,501 SGD
Retailer 5$1,510 SGD
Retailer 3$1,729 SGD
Retailer 9$1,812 SGD
Retailer 14$1,869 SGD
Brilliant Earth$4,345 SGD

36 data points across 16 retailers

23 retailers$634 SGD to $4,345 SGD

A
Retailer 1
-
$376 SGD
$293 USD
Price last confirmed 36 days ago
A
Retailer 2
-
$376 SGD
$293 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$436 SGD
$340 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
$459 SGD
$358 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$465 SGD
$363 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$465 SGD
$363 USD
View
Price last confirmed 26 days ago
A
Retailer 7
-
$634 SGD
$495 USD
View
A
Retailer 8
-
$654 SGD
$510 USD
View
Final sale: no returns
A
Retailer 9
-
$660 SGD
$515 USD
View
A
Retailer 10
-
$773 SGD
ZAR 9,738 ZAR
View
A
Retailer 11
-
$793 SGD
£487 GBP
View
A
Retailer 12
-
$887 SGD
$692 USD
View
A
Retailer 13
-
$1,002 SGD
$782 USD
View
A
Retailer 14
-
$1,046 SGD
A$1,255 AUD
View
B+
Retailer 15
-
$1,429 SGD
$1,115 USD
View
B+
Retailer 16
-
$1,496 SGD
$1,167 USD
View
Price last confirmed 21 days ago
B+
Retailer 17
-
$1,501 SGD
$1,171 USD
View
B+
Retailer 18
-
$1,510 SGD
$1,178 USD
View
B+
Retailer 19
-
$1,606 SGD
$1,253 USD
View
B+
Retailer 20
-
$1,729 SGD
$1,349 USD
View
B+
Retailer 21
-
$1,812 SGD
£1,113 GBP
View
B+
Retailer 22
-
$1,869 SGD
$1,458 USD
View
Most Expensive
B
Brilliant Earth
18549542A · Oct 29
$4,345 SGD
$3,390 USD
View
22 more retailers have this diamond
Prices start from $634 SGDSave up to $3,711 SGD

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
1.64ct Oval
$634 SGD