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Round|Lab Grown|IGI

1.91ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG817693378

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817693378

Diamond specifications and retailer prices

From $1,326 SGD
$1,037 USD
As of October 29, 2026
Save $6,255 SGD (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,581 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.91ct lab-grown round diamond

This 1.91ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG817693378 or 817693378. Listed at 21 retailers as of October 29, 2026, with prices from $1,326 to $7,581, a $6,255 spread on the same certified stone. Brilliant Earth lists it at $7,581. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817693378
Dimensions8.05 × 8.11 × 4.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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
8.05 mm8.11 mm1.91 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817693378
Side View
Table 57.0%Crown 33°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 60.3%

Caratlytics Score

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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 29
Current: $7,581 SGD|Low: $1,272 SGD|High: $8,220 SGD|Avg: $3,164 SGD|-7.6%
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
October 30, 2026
Retailer 14$1,326 SGD
Retailer 5$1,442 SGD
Retailer 7$1,484 SGD
Retailer 15$1,538 SGD
Retailer 13$1,758 SGD
Retailer 2$2,218 SGD
Retailer 3$2,453 SGD
Retailer 9$2,456 SGD
Retailer 8$2,827 SGD
Retailer 6$2,883 SGD
Retailer 12$4,487 SGD
Retailer 11$4,542 SGD
Retailer 4$5,160 SGD
Retailer 10$5,223 SGD
Brilliant Earth$7,581 SGD

39 data points across 15 retailers

21 retailers$1,326 SGD to $7,581 SGD

A
Cheapest Retailer
-
$1,326 SGD
$1,037 USD
A
Retailer 2
-
$1,442 SGD
$1,128 USD
View
A
Retailer 3
-
$1,484 SGD
$1,161 USD
View
Final sale: no returns
Retailer 4
-
$1,538 SGD
$1,203 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$1,538 SGD
$1,203 USD
View
B+
Retailer 6
-
$1,758 SGD
$1,375 USD
View
B+
Retailer 7
-
$1,784 SGD
HK$10,900 HKD
View
B+
Retailer 8
-
$2,182 SGD
$1,707 USD
View
B+
Retailer 9
-
$2,218 SGD
£1,366 GBP
View
B+
Retailer 10
-
$2,453 SGD
$1,919 USD
View
B+
Retailer 11
-
$2,456 SGD
€1,830 EUR
View
B+
Retailer 12
-
$2,827 SGD
ZAR 35,722 ZAR
View
B+
Retailer 13
-
$2,883 SGD
$2,255 USD
View
B
Retailer 14
-
$3,214 SGD
$2,514 USD
View
B
Retailer 15
-
$4,487 SGD
$3,510 USD
View
B
Retailer 16
-
$4,542 SGD
$3,553 USD
View
B
Retailer 17
-
$4,940 SGD
$3,865 USD
View
B
Retailer 18
-
$5,160 SGD
View
B
Retailer 19
-
$5,223 SGD
£3,217 GBP
View
B
Retailer 20
-
$5,367 SGD
$4,198 USD
View
Most Expensive
B
Brilliant Earth
20860275A · Oct 30
$7,581 SGD
$5,930 USD
View
20 more retailers have this diamond
Prices start from $1,326 SGDSave up to $6,255 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
1.91ct Round
$1,326 SGD