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Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 7543674333

Certificate GIA 7543674333

Diamond specifications and retailer prices

From $2,611 USD
As of November 6, 2026
Save $3,487 USD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,098 USD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7543674333. Listed at 16 retailers as of November 5, 2026, with prices from $2,611 to $6,098, a $3,487 spread on the same certified stone. NZ Jewellers lists it at $6,098. 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
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7543674333
Dimensions9.06 × 6.35 × 4.01 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
9.06 mm6.35 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7543674333
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

How it works →
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: Nov 6
Current: $3,395 USD|Low: $2,611 USD|High: $5,923 USD|Avg: $4,173 USD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$2,611 USD
Retailer 1$3,395 USD
Retailer 3$3,622 USD
Retailer 2$4,075 USD
Retailer 4$4,272 USD
Retailer 5$5,836 USD

37 data points across 6 retailers

16 retailers$2,611 USD to $6,098 USD

A
Cheapest Retailer
-
$2,611 USD
A
Retailer 2
-
$2,988 USD
View
A
Retailer 3
-
$3,107 USD
View
A
Retailer 4
-
$3,370 USD
View
A
Retailer 5
-
$3,395 USD
View
Retailer 6
-
$3,500 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,500 USD
View
A
Retailer 8
-
$3,622 USD
View
Retailer 9
-
$3,634 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$3,635 USD
View
B+
Retailer 11
-
$3,737 USD
View
B+
Retailer 12
-
$4,038 USD
View
B+
Retailer 13
-
$4,075 USD
View
B+
Retailer 14
-
$4,272 USD
View
B
Retailer 15
-
$5,836 USD
View
Most Expensive
B
NZ Jewellers
a167fbd1-0cc6-498b-b95c-4f6b8a2bffc5 · Nov 5
$6,098 USD
View
15 more retailers have this diamond
Prices start from $2,611 USDSave up to $3,487 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.

A
1.51ct Oval
$2,611 USD