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Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1169911515

Certificate GIA 1169911515

Diamond specifications and retailer prices

From $20,316 NZD
$11,450 USD
As of October 28, 2026
Save $15,720 NZD (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $36,036 NZD 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 1169911515. Listed at 19 retailers as of October 28, 2026, with prices from $20,316 to $36,036, a $15,720 spread on the same certified stone. MOH London lists it at $36,036. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1169911515
Dimensions8.79 × 6.58 × 4.09 mm
L/W Ratio1.34
Top View
8.79 mm6.58 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1169911515
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.2%

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: $36,036 NZD|Low: $20,316 NZD|High: $36,468 NZD|Avg: $27,289 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$20,316 NZD
Retailer 3$23,073 NZD
Retailer 8$24,611 NZD
Retailer 2$24,631 NZD
Retailer 6$24,777 NZD
Retailer 10$24,996 NZD
Retailer 9$25,958 NZD
Retailer 5$27,768 NZD
Retailer 11$32,686 NZD
Retailer 4$33,898 NZD
MOH London$36,036 NZD

42 data points across 11 retailers

19 retailers$20,316 NZD to $36,036 NZD

B+
Cheapest Retailer
-
$20,316 NZD
$11,450 USD
B
Retailer 2
-
$21,407 NZD
$12,065 USD
View
B
Retailer 3
-
$21,442 NZD
$12,085 USD
View
B
Retailer 4
-
$21,569 NZD
CA$16,884 CAD
View
B
Retailer 5
-
$22,684 NZD
$12,785 USD
View
B
Retailer 6
-
$23,073 NZD
$13,004 USD
View
B
Retailer 7
-
$24,611 NZD
$13,871 USD
View
B
Retailer 8
-
$24,631 NZD
£10,931 GBP
View
Retailer 9
-
$24,777 NZD
A$21,484 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$24,996 NZD
$14,088 USD
View
B
Retailer 11
-
$25,958 NZD
$14,630 USD
View
B
Retailer 12
-
$26,419 NZD
$14,890 USD
View
B
Retailer 13
-
$26,419 NZD
$14,890 USD
View
B
Retailer 14
-
$26,748 NZD
$15,075 USD
View
B
Retailer 15
-
$27,306 NZD
$15,390 USD
View
B
Retailer 16
-
$27,768 NZD
€14,905 EUR
View
B
Retailer 17
-
$32,686 NZD
$18,422 USD
View
B
Retailer 18
-
$33,898 NZD
ZAR 308,639 ZAR
View
Most Expensive
B
MOH London
DE6A5FE04 · Nov 1
$36,036 NZD
£15,992 GBP
View
18 more retailers have this diamond
Prices start from $20,316 NZDSave up to $15,720 NZD

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
$20,316 NZD