Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2316765230

Certificate GIA 2316765230

Diamond specifications and retailer prices

From $6,000 USD
As of November 2, 2026
Save $7,506 USD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $13,506 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2316765230. Listed at 22 retailers as of October 30, 2026, with prices from $6,000 to $13,506, a $7,506 spread on the same certified stone. NZ Jewellers lists it at $13,506. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2316765230
Dimensions9.00 × 6.65 × 4.02 mm
L/W Ratio1.35
Top View
9.00 mm6.65 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2316765230
Side View
Table 59.0%CrownGirdle: VTN-MEDPavilionCulet: NoneDepth 60.4%

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: Nov 2
Current: $13,506 USD|Low: $6,000 USD|High: $13,506 USD|Avg: $8,499 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11$6,000 USD
Retailer 9$6,447 USD
Retailer 4$6,753 USD
Retailer 3$7,316 USD
Retailer 10$7,428 USD
Retailer 5$7,617 USD
Retailer 8$7,738 USD
Retailer 12$8,441 USD
Retailer 2$8,820 USD
Retailer 6$9,920 USD
Retailer 7$11,314 USD
NZ Jewellers$13,506 USD

44 data points across 12 retailers

22 retailers$6,000 USD to $13,506 USD

B+
Cheapest Retailer
-
$6,000 USD
B+
Retailer 2
-
$6,258 USD
View
B+
Retailer 3
-
$6,380 USD
View
B+
Retailer 4
-
$6,447 USD
View
Final sale: no returns
B+
Retailer 5
-
$6,473 USD
View
B+
Retailer 6
-
$6,712 USD
CA$9,323 CAD
View
B+
Retailer 7
-
$6,753 USD
View
B+
Retailer 8
-
$6,765 USD
View
B+
Retailer 9
-
$6,809 USD
View
B
Retailer 10
-
$7,190 USD
View
B
Retailer 11
-
$7,316 USD
View
B
Retailer 12
-
$7,428 USD
View
B
Retailer 13
-
$7,458 USD
View
B+
Retailer 14
-
$7,617 USD
£5,997 GBP
View
B+
Retailer 15
-
$7,725 USD
View
Retailer 16
-
$7,738 USD
A$11,904 AUD
View
Price last confirmed 11 days ago
B
Retailer 17
-
$8,441 USD
View
B
Retailer 18
-
$8,820 USD
€8,400 EUR
View
B
Retailer 19
-
$8,897 USD
View
B
Retailer 20
-
$9,920 USD
ZAR 160,262 ZAR
View
B
Retailer 21
-
$11,314 USD
£8,909 GBP
View
Most Expensive
B
NZ Jewellers
7b5bc6cf-00be-4a75-8a6e-4a63f09f1019 · Oct 30
$13,506 USD
View
21 more retailers have this diamond
Prices start from $6,000 USDSave up to $7,506 USD

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
$6,000 USD