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Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 2166672066

Certificate GIA 2166672066

Diamond specifications and retailer prices

From $14,471 SGD
$11,320 USD
As of October 28, 2026
Save $11,191 SGD (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $25,662 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural oval diamond

This 1.51ct natural oval 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 stated by the retailer rather than the lab and certified by GIA 2166672066. Listed at 19 retailers as of October 28, 2026, with prices from $14,471 to $25,662, a $11,191 spread on the same certified stone. MOH London lists it at $25,662. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2166672066
Dimensions8.71 × 6.71 × 4.08 mm
L/W Ratio1.30
Top View
8.71 mm6.71 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2166672066
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.9%

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 28
Current: $25,662 SGD|Low: $14,471 SGD|High: $25,971 SGD|Avg: $19,743 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6$14,471 SGD
Retailer 7$17,527 SGD
Retailer 2$17,539 SGD
Retailer 5$17,642 SGD
Retailer 10$17,800 SGD
Retailer 9$18,486 SGD
Retailer 4$19,772 SGD
Retailer 8$23,278 SGD
Retailer 3$24,140 SGD
MOH London$25,662 SGD

44 data points across 10 retailers

19 retailers$14,471 SGD to $25,662 SGD

B+
Cheapest Retailer
-
$14,471 SGD
$11,320 USD
B
Retailer 2
-
$15,245 SGD
$11,925 USD
View
B
Retailer 3
-
$15,268 SGD
$11,943 USD
View
B
Retailer 4
-
$15,358 SGD
CA$16,685 CAD
View
B
Retailer 5
-
$16,159 SGD
$12,640 USD
View
B
Retailer 6
-
$16,431 SGD
$12,853 USD
View
B
Retailer 7
-
$17,527 SGD
$13,710 USD
View
B
Retailer 8
-
$17,539 SGD
£10,803 GBP
View
Retailer 9
-
$17,642 SGD
A$21,231 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$17,800 SGD
$13,924 USD
View
B
Retailer 11
-
$18,486 SGD
$14,460 USD
View
B
Retailer 12
-
$18,844 SGD
$14,740 USD
View
B
Retailer 13
-
$18,844 SGD
$14,740 USD
View
B
Retailer 14
-
$19,044 SGD
$14,897 USD
View
B
Retailer 15
-
$19,470 SGD
$15,230 USD
View
B
Retailer 16
-
$19,772 SGD
€14,730 EUR
View
B
Retailer 17
-
$23,278 SGD
$18,209 USD
View
B
Retailer 18
-
$24,140 SGD
ZAR 305,059 ZAR
View
Most Expensive
B
MOH London
8A6CB078A · Nov 1
$25,662 SGD
£15,806 GBP
View
18 more retailers have this diamond
Prices start from $14,471 SGDSave up to $11,191 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.

B+
1.51ct Oval
$14,471 SGD