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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 $15,813 CAD
$11,320 USD
As of October 28, 2026
Save $12,228 CAD (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $28,041 CAD 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 $15,813 to $28,041, a $12,228 spread on the same certified stone. MOH London lists it at $28,041. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $28,041 CAD|Low: $15,813 CAD|High: $28,378 CAD|Avg: $21,573 CAD|-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$15,813 CAD
Retailer 7$19,151 CAD
Retailer 2$19,165 CAD
Retailer 5$19,278 CAD
Retailer 10$19,450 CAD
Retailer 9$20,199 CAD
Retailer 4$21,605 CAD
Retailer 8$25,436 CAD
Retailer 3$26,378 CAD
MOH London$28,041 CAD

44 data points across 10 retailers

19 retailers$15,813 CAD to $28,041 CAD

B+
Cheapest Retailer
-
$15,813 CAD
$11,320 USD
B
Retailer 2
-
$16,658 CAD
$11,925 USD
View
B
Retailer 3
-
$16,683 CAD
$11,943 USD
View
B
Retailer 4
-
$16,781 CAD
View
B
Retailer 5
-
$17,657 CAD
$12,640 USD
View
B
Retailer 6
-
$17,954 CAD
$12,853 USD
View
B
Retailer 7
-
$19,151 CAD
$13,710 USD
View
B
Retailer 8
-
$19,165 CAD
£10,803 GBP
View
Retailer 9
-
$19,278 CAD
A$21,231 AUD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$19,450 CAD
$13,924 USD
View
B
Retailer 11
-
$20,199 CAD
$14,460 USD
View
B
Retailer 12
-
$20,590 CAD
$14,740 USD
View
B
Retailer 13
-
$20,590 CAD
$14,740 USD
View
B
Retailer 14
-
$20,810 CAD
$14,897 USD
View
B
Retailer 15
-
$21,275 CAD
$15,230 USD
View
B
Retailer 16
-
$21,605 CAD
€14,730 EUR
View
B
Retailer 17
-
$25,436 CAD
$18,209 USD
View
B
Retailer 18
-
$26,378 CAD
ZAR 305,059 ZAR
View
Most Expensive
B
MOH London
8A6CB078A · Nov 1
$28,041 CAD
£15,806 GBP
View
18 more retailers have this diamond
Prices start from $15,813 CADSave up to $12,228 CAD

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
$15,813 CAD