Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6243006312

Certificate GIA 6243006312

Diamond specifications and retailer prices

From $7,949 USD
As of October 26, 2026
Save $6,367 USD (44%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $14,316 USD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E 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 6243006312. Listed at 22 retailers as of October 26, 2026, with prices from $7,949 to $14,316, a $6,367 spread on the same certified stone. NZ Jewellers lists it at $14,316. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6243006312
Dimensions7.69 × 5.69 × 3.85 mm
L/W Ratio1.35
Culet sizeNone
Top View
7.69 mm5.69 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6243006312
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.7%

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 26
Current: $14,316 USD|Low: $7,895 USD|High: $14,316 USD|Avg: $10,116 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 28, 2026
Retailer 5$7,895 USD
Retailer 4$7,949 USD
Retailer 11$8,535 USD
Retailer 15$8,590 USD
Retailer 10$8,661 USD
Retailer 7$8,902 USD
Retailer 19$9,305 USD
Retailer 12$9,332 USD
Retailer 16$9,433 USD
Retailer 17$9,449 USD
Retailer 8$9,488 USD
Retailer 2$9,663 USD
Retailer 3$10,528 USD
Retailer 9$10,583 USD
Retailer 6$10,737 USD
Retailer 13$10,764 USD
Retailer 18$12,396 USD
Retailer 14$13,433 USD
NZ Jewellers$14,316 USD

32 data points across 19 retailers

22 retailers$7,949 USD to $14,316 USD

B+
Retailer 1
-
$7,895 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$7,949 USD
View
B+
Retailer 3
-
$8,042 USD
View
B+
Retailer 4
-
$8,535 USD
View
B+
Retailer 5
-
$8,590 USD
View
B+
Retailer 6
-
$8,661 USD
View
B+
Retailer 7
-
$8,902 USD
CA$12,363 CAD
View
B+
Retailer 8
-
$9,157 USD
View
B+
Retailer 9
-
$9,305 USD
View
B+
Retailer 10
-
$9,332 USD
£7,348 GBP
View
B+
Retailer 11
-
$9,433 USD
A$14,512 AUD
View
B+
Retailer 12
-
$9,449 USD
View
B
Retailer 13
-
$9,488 USD
View
B+
Retailer 14
-
$9,663 USD
£7,609 GBP
View
B
Retailer 15
-
$10,528 USD
View
B
Retailer 16
-
$10,583 USD
View
B
Retailer 17
-
$10,737 USD
View
B+
Retailer 18
-
$10,764 USD
€10,251 EUR
View
B
Retailer 19
-
$11,306 USD
View
B
Retailer 20
-
$12,396 USD
ZAR 200,255 ZAR
View
Price last confirmed 7 days ago
B
Retailer 21
-
$13,433 USD
£10,577 GBP
View
Most Expensive
B
NZ Jewellers
021ade1d-30d8-47bd-ad0e-6c1fc438c237 · Oct 27
$14,316 USD
View
21 more retailers have this diamond
Prices start from $7,949 USDSave up to $6,367 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 Radiant
$7,949 USD